The change of the direction of a wave-front because of a change in the velocity of the wave in another medium is called?
A
refraction
B
reflection
C
diffraction
D
interference
E
dispersion
Verified Correct Answer: A.
Physical Principles & Numerical Solution
Refraction: change in direction of propagation of any wave as a result of its traveling at different speeds at different points along the wave front.
Source: Myschool Past Questions Archive (Record #21246)